Abstract: This application concerns a process for controlling access by a user (7) to a value added service (VAS) (5) received via receiver device (2), designed for connection to a device (3) for transmission of said VAS via network (4). Receiver device (2) receives said VAS (5) from transmitter device (3) in partially enciphered form. Said VAS is transmitted by said transmitter device without any request from user (7). Receiver device (2) receives said VAS (5) from transmitter device (3) in partially enciphered form. This application also applies to the system for implementation of said process.

Abstract: An assembly comprises an integrated circuit card capable (2) of communicating data in a contactless fashion. The assembly further comprises a case (32) for the integrated circuit card. The case has an electrical circuit (14, 16) which, when the integrated circuit card is inside the case, is electrically coupled to the integrated circuit card so as to prevent the integrated circuit card from communicating data in a contactless fashion.

Abstract: A data processing system which includes memory, a processor connected to the memory, and logic for causing the processor to perform a method for executing computer code having a plurality of transactions within the computer code. The method includes steps for examining the computer code being executed for a change in observable state; for storing data for the executed computer code that are part of the plurality of transactions within the computer code; for maintaining a pointer to the logical beginning of the stored data and maintaining a pointer to the end of the stored data for the last transaction within the computer code to be fully executed; and responsive to detecting a change in observable state, for committing a portion of the stored data.

Abstract: An integrated circuit card is used with a terminal. The integrated circuit card includes a memory that stores an interpreter and an application that has a high level programming language format. A processor of the card is configured to use the interpreter to interpret the application for execution and to use a communicator of the card to communicate with the terminal.

Abstract: This invention concerns an optimised management method for allocating memory space of an onboard system to a data structure and a corresponding onboard system. The object code packets and the data packets being discriminated, and the memory being subdivided into addressable elementary memory blocks, the method consists in allocating (A1) to the object code packets a set of elementary memory blocks located in a first memory space (MS1) to addresses substantially adjacent and to the data packets another set of elementary memory blocks located in a second memory range (MS2). This enables to avoid fragmentation of the memory zone, during successive installations/deinstallations and to implement very easily an optimal defragmentation procedure, adapted to each type of data, code or application data.

Abstract: A data protection method using a cryptographic algorithm comprising at least one execution cycle of repetitive operations for processing data elements (K2, R1) so as to generate encrypted information (C). At least one step (120, 220) is provided for randomly modifying the execution of at least one operation from one cycle to another, or at least one of the data elements, so that the encrypted information is unchanged by this random modification.

Abstract: A card-like portable article having a microcontroller comprises a memory that contains a set of instructions allowing the microcontroller to communicate in accordance with a first communication protocol. The card-like portable article further comprises an interface for converting commands in accordance with the first communication protocol into commands in accordance with a second communication protocol and vice versa. Preferably, the first communication protocol is in conformity with the ISO 7816-3 standard and the second communication protocol is in conformity with the USB standard.

Abstract: A card comprises electrical contacts (32, 34) for communicating data in the form of a differential accordance with a universal serial bus (USB) standard. The card can be inserted in a card reader having complementary electrical contacts (16). The card has an insertion edge (A) which traverses the complementary electrical contacts when the card is inserted in the card reader in a correct fashion. The card comprises an electrical contact for receiving a power supply voltage which (22) electrical contact (22) is closer to the insertion edge than either electrical contact of the pair of electrical contacts (32, 34) for communicating data in the form a differential signal in accordance the USB standard.

Abstract: A portable article of the smart card type and a method of transmitting data to such an article. The article comprises an article body and an integrated circuit chip. The integrated circuit chip comprises a central processor unit (CPU) connected via a data and address bus to memories (ROM, RAM, EEPROM), and at least four contact pads (VCC, GND, RST, VPP, CLK, I/O, D+, D?) connected to four contact areas (C1, C5, C4, C8) of a set of at least six contact areas flush with the surface of the card body. Two of the contacts pads (D+, D?) are connected to an interface of the card and are suitable for providing data transmission handled by the central processor unit (CPU) such as for transmitting data using the universal serial bus (USB) protocols and formats.

Abstract: A wireline well-logging data acquisition system and method with corrected depth index. The system having a winch for reeling-in a wireline cable connected to a well-logging tool. A depth index device and a cable tension meter are connected to the wireline cable. A computer system adjusts the depth index as a function of wireline tension measured by the cable tension meter. The computer system executes a method that includes a control loop for adjusting the depth index as function of the wireline tension.

Abstract: In a method for a well logging data presentation, data sets are identified from well logging data. Each data set is assigned a unique identifier. A presentation template, which defines a presentation for the well logging data, is configured. The presentation for the logging data may be in the form of a display and/or a hard copy. The presentation template includes definitions of a number of component presentations. Each component presentation includes a corresponding component template. Each component template includes a pointer pointing to a source for one of the data sets and defines a structure for the component's presentation. A graphical presentation program generates the presentation, responsive to reading the presentation template, component templates and data sets. The presentation can be viewed and changed while data is still being acquired.

Abstract: A method and a system for generating a dither matrix calibrated to a desired tonal response. The method and system comprise generating a dither matrix with a predicted tonal response, measuring the actual tonal response, manipulating a cumulative histogram for the dither matrix in response to the actual tonal response, and inputting the cumulative histogram to a dither matrix generation program to generate a dither matrix that conforms to the cumulative histogram. Other systems and methods are disclosed.

Abstract: A lossless image compression encoder/decoder system having a context determination circuit and a code table generator. The image compressor uses the context of a pixel to be encoded to predict the value of the pixel and determines a prediction error. The image compressor contains a context quantizer that quantizes the context of pixels. The image compressor counts the error values for each quantized context and uses these counts to generate context-specific coding tables for each quantized context. As it encodes a particular pixel, the encoder looks up the prediction error in the context-specific coding table for the context of the pixel and encodes that value. To decompress an image, the decompressor determines and quantizes the context of each pixel being decoded. The decompressor uses the same pixels as the compressor to determine the context. The decompressor retrieves from the context-specific coding table the error value corresponding to the coded pixel.

Abstract: A system and method for simulating bridging faults uses means for retrieving, as a function of voltage, strengths of simple transistor circuits relative to the strength of a reference device. This relative strength is used to determine the voltage at bridge faults. The bridge voltage is compared to the threshold voltages of devices connected to the bridging node to determine the logic interpretation by such gates of such voltage. Other systems and methods are disclosed.

Abstract: A floating point processing system which uses a multiplier unit and an adder unit to perform properly rounded quad precision floating point arithmetic operations using double-extended hardware. The floating point processing system includes quad data muxes for converting a quantity between a quad precision representation and a two double-extended precision quantities and vice versa, wherein the sum, if added at infinite precision, of the two double-extended precision quantities is equal to the quad precision quantity. The floating point processing system further include hardware for performing arithmetic operations on double-extended precision quantities.

Abstract: A chassis for a portable printer wherein the structural members of the chassis not only makes the chassis more rigid, but each serves a functional role.

Abstract: An apparatus and method for assisting persons in making decisions, using a computer programmed with artificial intelligence techniques. Real world objects and events pertaining to a particular domain are represented in a knowledge base. Best choices for solving problems are made according to the application of rules, which may be applied absolutely, comparatively, by weight, or ordered, according to methods selected by the user. The invention also permits the user to select from among various decision making strategies and permits the user to observe the effects of choices in hypothetical scenarios.